Rotary engine.



E. J. M. MADERO. ROTARY ENGINE.

APPLICATION FILED JAN. 20, 1911.

1,028,371 Patented June 4,1912.

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E. J. M. MADBRO.

ROTARY ENGINE.

APPLICATION FILED JAN. 20, 1911.

1,028,371 Patented June 4, 1912.

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EDUARDO JOSE MARIA MADERO, OF BUENOS AIRES, ARGENTINA.

ROTARY ENGINE.

Specification of Letters Patent.

Application filed January 20, 1911.

Patented June a, 1912. Serial No. 603,742.

To all whom it may concern:

' Be it known that I, EDUARDO JOSE MARIA MADERo, a citizen of Argentina, residing at N o. 745 Calle Tuouman, Buenos Aires, Argentina, have invented a new Rotary Engine, of which the following is a specification.

My present invention relates to a novel rotary engine, essentially distinguished by the fact that there does not exist in its working a dead point and that the source of power, either steam or that derived from the explosion of gases, acts in a continuous and constant manner against a plunger revolving within a circular chamber, and which constitutes a point of invariable eccentricity in relation to the center or axis of rotation of the engine.

As will be explained later on, the plunger conveniently fixed to a revolving ring, ef fects its course or revolution within a circular chamber alternately and automatically obturated at two diametrically opposite points by means of two interposed plates acted upon, cojointly, by a particular spring, secured to the axle of the engine. Said plates obturate the port of the chamber in the very instant in which the plunger has passed by the corresponding set, and cause the admission of energy which forces the latter toward the opposite point where, after passing, the other plate repeats the same operation. Thus, the plunger can in no case remain at a dead point, whether it revolves in one or the other direction.

Besides its simplicity and easy fitting, this novel system of engine offers the advantage,

over those already known, that owing to the combination of the elements constituting the same and the manner in which the plunger is driven, the source of initial force is made use ofby transforming the same into its maximum equivalent of motive power, of constant strength.

For the purpose of a clearer understanding, illustrative drawings have been annexed to the present specification, wherein:

Figure 1 is a front elevation, partially in section, of a rotary engine constructed according to my invention. Fig. 2 is a plan view of the same, with the top of the cham ber removed. Fig. 3 is a rear elevation partially in section, for better illustration. Fig. 4 is a detail view showing the connection between the upper and lower chamber and the automatic device for retaining and releasing the interposed plates.

In said drawings, 1 indicates the parts which after being connected and fixed together by means of the bolts 2, form the circular chamber. The fore part of this cham ber has a circular opening 3, closed by the revolving ring 4, retained in its place by the shape of the two edges of said opening and by the particular form of its section, as will be clearly seen in Figs. 1 and 2. There have been provided steel balls 5, placed between each outer edge of the opening 3 and the inner edge of the ring 4:, for the purpose of reducing the friction of this latter and render its motion steadier. lVithin the said ring is fixed the plunger 6 by means of three bolts 7, and between both a plate 7 a is fitted, serving as a guide for the movement of the plunger and assisting at the same time to perfectly close the action of the chamber. The plunger is hollow, and in order to get an easy fitting within the chamber, it has been provided with two brass rings 8, of a greater width than the thickness of the intervening plates. Three arms 9 fixed to the ring 4., transmit motion to the axle 10, provided with the spring 11 and revolving in the bearing 12, held in position by the brackets 13.

The two parts or bodies 1, when joined, form a space which permits of the insertion of the-intermediate plates 14 and 15, connected together by means of the rods 16. Said plates bear at each side a spring 17 which assists to effect the fitting with the ring 4:. Each of the plates, after being inserted into said recess or space, is retained in place by means of a pair of stops 18 on the corresponding side. The two stops of each side move in the reverse direction and are driven bythe arms 19, connected to the rods 20 which reverse the motion transmitted to them by the guide 21, owing to the same being combined with a beam 22 (Fig. 4). A spring 23 always causes the stops to tend to join each other, so that when the interposed plate penetrates into the recess, the said stops will retain the same owing to the action of the spring and will not release it until the lever 24rmoves the guide 21. Said lever 2-1- is oined in the center and is so guided by the axle that the fraction of one side may move independently of the other, but this only in a horizontal direction, since in the vertical direction both move as if they were only one. In the ring 4 a projecting stud 25 is provided which, when abutting against the end of the said lever, by either one or the other of its extremities, will raise it or cause the same to separate from the ring, and this movement will cause the disengagement of the stops 18 in relation to the corresponding intermediate plate. The vertical movement of the said lever 24 has for purpose to compensate for the length of the plunger in order that the engine may be reversed. The tubes 26 are connected to the usual distribution box, and they may therefore be of admission or exhaust, according to whether the engine is to be worked in one or the other direction. The communication of these tubes with the circular chamber is established or shut off by means of plugs formed by a box 27 in which moves a plate 28 cooperating with the movement of the rod 29 acted upon by a spring .30.

The working of the engine is as follows: In Fig. 1 the engine is shown in the in stant in which the intermediate plate obturates the chamber. In this position steam enters through the perforation provided between the plate and the plunger and forces this latter toward the opposite part. In the very instant in which the plunger has passed through the recess wherein the plate 14 is placed, the stud 25 will raise the opposite extension of the lever 24 and this movement will cause the stops 18 to release the plate 15 and thereupon, owing to the action of the spring 11, said plate 14: is inserted into the recess or cavity and obturates the chamber. On this plate nearly reaching the end of its stroke, the arms 16 will abut against the bent portion of the rods 29 of the plugs or obturators which will cause the admission of energy through the perforation between the plunger and the plate, while the perforation situated on the other side of the same, is open for exhaust. A similar operation will take place on the plunger passing again by the plate 15, and so on.

If it be desired to reverse the motion of the engine, when running, it will only be necessary, by means of a common distribution box, to reverse the admission and exhaust ducts and incline the lever 24 in the inverse sense. Thereupon, the manner of working of the engine will be the same, although in the reverse direction.

It will be understood that owing to the manner of working of the intermediate plates in combination with the plugs for the admission and exhaust of motive power, there will in no case exist a dead point for the plunger.

It is evident that the axle 10 may be connected directly to any machine, or the power may be transmitted by means of pulleys or otherwise.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim, is:

1. A rotary engine comprising a casing having an annular chamber provided with inlet and exhaust ports at diametrically opposite points, connected slides to bisect said chamber alternately at said points, a piston in said chamber, a shaft mounted axially of the chamber, means connecting the shaft and piston, and a spring carried by the shaft to operate the slides.

2. A rotary engine comprising a casing having an annular chamber provided with inlet and exhaust ports at diametrically opposite points, connected slides to bisect said chamber alternately at said points, a piston in said chamber, a shaft mounted axially of the chamber, means connecting the shaft and piston, means to hold the slides in one position during the period of travel of the piston from one of said points to the other, means operated by the movement of the piston to release said slides at the end of said period, and a yielding member on the shaft adapted to reverse the position of the slides simultaneously with the releasing of the latter.

3. A rotary engine comprising a casing having an annular chamber provided with inlet and exhaust ports at diametrically opposite points, connected slides to bisect said chamber alternately at said points, a piston in said chamber, a shaft mounted axially of the chamber, means connecting the shaft and piston, means to hold the slides in one position during the period of travel of the piston from one of said points to the other, means operated by the movement of the piston to release said slides at the end of said period, and an endless normally elliptical spring on the shaft adapted to reverse the position of the slides simultaneously with the releasing of the latter.

4:. A rotary engine comprising a casing having an annular chamber provided with admission and exhaust ports at diametrically opposite points, a piston in said chamber, a ring closing said chamber rotatably mounted on the casing and connected to the piston, mechanism for controlling said ports, slides adapted to divide the chamber at said ports, a shaft mounted axially of the chamber, means to lock the slides in one position during the period of travel of the piston from one point to the other, means on the ring to operate the locking means at the end of said period to release the slides, and a spring mounted on the shaft between the slides adapted to reverse the position of the latter simultaneously with the releasing of the slides.

5. A rotary engine comprising a casing having an annular chamber provided with inlet and exhaust ports, a piston in said chamber, slides adapted to divide the chamber alternately at said ports, means to alternately lock the slides in the chamber, a rotatable shaft mounted axially of Said chamber and connected to the piston, a spring fixed to the shaft between the slides and adapted to be compressed by one of the slides prior to the passage of the piston past the exhaust port, and means to release the slides simultaneously with said passage, whereby the spring expands and shifts the position of the slides.

63. A rotary engine comprising a casing having an annular chamber provided with admission and exhaust ports at diametrically opposite points, slides adapted to alternately bisect said chamber at said points, means operated by the slides for controlling the ports, a piston in said chamber, an annular driving member rotatably mounted on the casing connected with the piston, and means operated by the driving member to move the slides simultaneously in the same direction.

7. A rotary engine comprising a casing having an annular chamber provided with admission and exhaust ports at diametrically opposite points, slides adapted to alternately bisect said chamber at said points, a piston in said chamber, an annular driving member connected with the piston, means operated by the driving member to move the slides simultaneously in the same direction whereby said chamber is divided alternately at opposite points, and retaining stops adapted to engage the slide dividing the chamber.

8. A rotary engine comprising a casing having an annular chamber provided with admission and exhaust ports at diametrically opposite points, slides adapted to alternately bisect said chamber at said points, a piston in said chamber, an annular driving member connected with the piston, means operated bv the driving member to move the slides simultaneously in the same direction whereby said chamber is divided alternately at opposite points, retaining stops adapted to engage the slide dividing the chamber, means to control the ports, and means operated by the movement of the slide to operate the port controlling means.

9. A rotary engine comprising a casing having an annular chamber provided with admission and exhaust ports at diametrically opposite points, mechanism for controlling said ports, a ring rotatably mounted on the casing forming a closure for one side of the annular chamber, a piston fixed to the ring, slides adapted to divide the chamber at said points, means connecting said slides, a shaft connected with and driven by the ring, a spring fixed on the shaft adapted to reciprocate the slides, retention stops adapted to engage the slides, mechanism operated by the rotation of the ring to move the stops out of engagement with the slides, and means operated by the movement of the slides to operate the port controlling mechanism.

In witness whereof, I have signed the above specification in the presence of two subscribing witnesses.

EDUARDO J OSE MARIA MADERO.

Witnesses:

ATONIO L. BELLA, L. PUNIENTE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

